This article reports three experiments that investigated the relationship between working memory capacity and syllogistic and five-term series spatial inference. A series of complex and simple verbal and spatial working memory measures were employed. Correlational analyses showed that verbal and spatial working memory span tasks consistently predicted syllogistic and spatial reasoning performance. A confirmatory factor analysis showed that three factors best accounted for the data--a verbal, a spatial, and a general factor. Syllogistic reasoning performance loaded all three factors, whilst spatial (...) reasoning loaded only the general factor. The implications of these findings are discussed in the context of reasoning theories and contemporary accounts of the structure of working memory. (shrink)

A study is reported which focused on the problem-solving strategies employed by expert electronics engineers pursuing a real-world task: integrated-circuit design. Verbal protocol data were analysed so as to reveal aspects of the organisation and sequencing of ongoing design activity. These analyses indicated that the designers were implementing a highly systematic solution-development strategy which deviated only a small degree from a normatively optimal top-down and breadth-first method. Although some of the observed deviation could be described as opportunistic in nature, much (...) of it reflected the rapid depth-first exploration of tentative solution ideas. We argue that switches from a predominantly breadth-first mode of problem solving to depth-first or opportunistic modes may be an important aspect of the expert's strategic knowledge about how to conduct the design process effectively when faced with difficulties, uncertainties, and design impasses. (shrink)

The ability to reason independently from one's own goals or beliefs has long been recognised as a key characteristic of the development of formal operational thought. In this article we present the results of a study that examined the correlates of this ability in a group of 10-year-old children ( N = 61). Participants were presented with conditional and relational reasoning items, where the content was manipulated such that the conclusion to the arguments were either congruent, neutral, or incongruent with (...) beliefs, and either logically valid or logically invalid. Participants also received a measure of working memory capacity (the counting span task) and a measure of inhibitory control (the stop signal task). Indices of belief bias and logical reasoning on belief-based problems were predicted independently by both measures. In contrast logical reasoning on belief neutral problems was predicted by working memory alone. The findings suggest that executive functions play a key role in the development of children's ability to decontextualise their thinking. (shrink)

The article reviews recent developments in England in the law of necessity as a defence to crime and calls for its further extension. It argues that the defence of necessity presents the criminal law with difficult questions of competing values and the ordering of harms. English law has taken a nuanced position on the respective roles of the courts and the legislature in the ordering of harms, although the development of the law has been pragmatic rather than coherently theorised. The (...) law has granted necessity some scope as an exculpatory principle in the law of general defences, but it has also respected the primacy of the legislature as the legitimate arbiter of many of the competitions of value that necessity throws up. The recognition of necessity has not been in the form of a single unified defence of that name. Rather it has taken the form of a number of defences, based on a principle of necessity, but with different nomenclature and different rationales. This approach to necessity is defended as right in terms of principle and policy. Any further development of necessity as a general defence should be restricted to two contexts, namely those of emergencies, and of conflicts of duty, where a danger of death or serious injury is present. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:"'Twas Nature Gnaw'd Them to This Resolution":Byron's Poetry and Mimetic DesireIan Dennis (bio)1. IntroductionWe all know Lord Byron, I presume. Know him as a paradigmatic object of cultural desire, as the quintessentially romantic individualist whose haughtily transgressive rejection of his society turned him into one of its most compelling models and objects, the endlessly provocative rival of a multitude of young men to follow—and they are still following—all to (...) differing degrees blind to or writhing in the anxieties of his influence. I myself belong to that somewhat smaller group that actually reads his poetry.Having passed through the little deification of celebrity, Byron was on something of a downslope of fame, and knew it, before he put the matter past all doubt by dying almost-young for liberty in Greece in 1824. Perhaps not surprisingly, given all this, he developed into something of an expert on desire. Almost alone among the major Romantics, he came to understand this most basic force in human experience not only as mediated and mimetic but as increasingly a function of a new kind of market whose commanding value was apparent autonomy from the market. It is not too hard to see how he figured this out. Those whom Byron defied adored him; those whose petty gratifications he evaded in spectacular suffering emulated him; those to whose desires he declared himself indifferent desired him—as few have ever been desired. For all his very real faults he was an intelligent man and an observant one. He reflected on what had happened to him.2. Reading Byron's Poetry for Nature and DesireIn his earlier poetry the natural scene, at least in Byron's privileged experiences of it, acts as an ally against other people. It is a source of his difference from and thus his indifference to the rest of us—an apparent replacement for, rather than object of, mediated desire. [End Page 115]Almost the first words of the preface to his fame-making Childe Harold's Pilgrimage (1812) tell us that the poem was "written, for the most part, amidst the scenes which it attempts to describe" and a coy disquisition on the identity of the Childe—who is and is not Byron—follows close on the heels of a spate of place-name dropping. They are sexy places, too, hard to get to, exotic, naturally beautiful, and dangerous. Soon the note of human pollution is of course sounded—man "mars" the beauties of Cintra that the hero is experiencing (1980–1993, 1.15)1—reminding us of the prototypical alliance between the alienated Romantic solitary and the unspoiled, or spoiled natural world, alike menaced by sociality, by the Other. This alliance is powerfully reinforced by an identification with the bovine victim of the Cadiz bull-ring, vivid sacrifice at the center of—in the young poet's chilling phrase—"the silent circle's peopled walls" (1.75). Does man scapegoat nature? There could hardly be a handier metaphor. And the Childe makes common cause.Mainly, though, "Dear Nature" is the particular solace of her "never-wean'd" favorite son, the one who never "pollutes her path," he who, as he rather complacently notes, "mark'd her when none other hath" (2.27). Byron does at least make good on such a claim by going to Albania, a wild, inaccessible place which he, with some justification, boasts "all admire, but many dread to view" (2.43). He writes some stirring descriptive poetry, leavened with occasional homilies on the smallness and nastiness of man and the grandeur and beauty of nature, sentiments that would not sound out of character on the lips of young backpacking, development-deploring kindred spirits of a later age. Again, it is to be remembered that the first besmirchment of the natural world to be complained of is not material, but social, in particular by the Romantic rebel's own society—not chemicals and chainsaws but the poisonous presence of overly familiar people and practices. The language of protest remains much the same after the products of industrial economic activity are added to the score, and indeed a good part of... (shrink)

In lieu of an abstract, here is a brief excerpt of the content:Sophie, Greta, Cuiyuan, and Feminist DesireStories by Ding Ling, Alice Munro, and Eileen ChangYuhui Bao (bio) and Ian Dennis (bio)Desire has a history and, for a literary criticism inflected by mimetic theory, novelistic prose fiction offers a privileged view of its unfolding. We study novelistic fiction, as opposed to various romance genres, to grasp that history, for what its authors have been able to see, understand, and dramatize—this is (...) the procedural model, indeed the authority established by René Girard and that has largely governed such criticism thereafter.1 But of the three short fictions we consider here—two Chinese and one Canadian—only two are fully novelistic in character, in that they attempt to describe and diagnose—rather than merely express—emergent and changing desires. Students of Girard, of course, recognize here the distinction between the romanesque and romantique. to which one might add the understandings of genre developed by a number of other theorists.2However, we might also concede that all fictions are invariably and to some degree romantic—some desire, necessarily mediated, is always operative, in writers and readers alike, before or even as it is demystified, if indeed it is. Furthermore, a passionate fictional commitment to that which Girard boldly [End Page 131] designated the mensonge romantique may actually reveal or clarify, at least for later readers, that which the author seeks half- or unconsciously to conceal. It is with this possibility in mind that we propose to consider our other subject fiction, "Miss Sophie's Diary" (莎菲女士的日记 sha fei nv shi de ri ji; 1927) by the pioneering Chinese woman writer Ding Ling (丁玲 ding ling).3 "Miss Sophie's Diary," to be clear, is no simple romance; it is at least hybrid, and in its brave if perhaps only partially successful pursuit of the truth of desire, subtly revelatory. Miss Sophie (莎菲 sha fei), chronically ill with tuberculosis and half-separated from a human world she both longs for and despises, with her aggrieved sense of superiority and desperate, shameful longing for those she passionately feels to be her inferiors, with her loquacious rationalizing and constant, perverse reversals of attitude, is a kind of Dostoyevskian "underground woman," afflicted as well with a touch of the "nausea" later made prestigious by J.-P. Sartre.4 She is clearly a harbinger of her own culture's precipitation into the world of internally mediated, indeed, metaphysical desire, what we might also call the market world, the modernity Girard credits the great European novelists from Stendhal onward with diagnosing. This story has long been described as an unprecedented and "frank" revelation "of a Chinese woman's sexual feelings and contempt for conventional views," expressing an "outspoken and unrelenting individualism."5 At the same time, it has been seen as a product of the fatally compromised and ultimately unsuccessful May Fourth literary movement,6 and not necessarily representative of its author's overall fictional production. From an orthodox Girardian critical perspective, however, the crucial interpretative question might be the degree to which Ding Ling is aware of the sources of the newly enfranchised desires her heroine wrestles with, or, as we might also put it, the degree of separation between the author's understanding and that of Miss Sophie. But such a question is perhaps easily enough answered. Ding Ling clearly does not share Girard's "novelistic" perspective on the operation of desire. But from our current perspective, does her best-known work nonetheless offer, however imperfectly, certain now-recognizable insights into historical processes of desire that our other two writers more fully realize?"Miss Sophie's Diary" is famous in China for the delicacy, depth, and explicitness with which those bold and passionate sexual desires of Sophie are exposed, even as such desires are (perhaps reassuringly) defeated, or at least revealed as illusory. Clearly the story reflects a period of cultural and personal crisis. "I was extremely confused at that time," she wrote in a later phase of self-critique. "On one hand, I was radically rebellious, believing blindly in social revolution; on the other hand, I indulged myself in a petty bourgeoisie sense, departing from revolution, so I was trapped in loneliness, struggle and misery [End... (shrink)

The aim of the present research was to develop a difficulty model for logical reasoning problems involving complex ordered arrays used in the Graduate Record Examination. The approach used involved breaking down the problems into their basic cognitive elements such as the complexity of the rules used, the number of mental models required to represent the problem, and question type. Weightings for these different elements were derived from two experimental studies and from the reasoning literature. Based on these weights, difficulty (...) models were developed which were then tested against new data. The models had excellent predictive validity and showed the relative influence of rule based factors and factors relating to the number of underlying models. Different difficulty models were needed for different question types, suggesting that people used a variety of approaches and, at a wider level, that both mental models and mental rules may be used in reasoning. (shrink)